The Collaborative International Dictionary of English v.0.48:

Philologist \Phi*lol"o*gist\, n.
   One versed in philology.
   [1913 Webster]

WordNet (r) 3.0 (2006):

philologist
    n 1: a humanist specializing in classical scholarship [syn:
         philologist, philologue]

Moby Thesaurus II by Grady Ward, 1.0:

55 Moby Thesaurus words for "philologist":
   academician, bookman, classicist, clerk, colossus of knowledge,
   dialectician, etymologer, etymologist, genius, giant of learning,
   glossarist, glossographer, grammarian, grammaticaster, grammatist,
   humanist, learned clerk, learned man, lexicographer, lexicologist,
   linguist, linguistic scholar, linguistic scientist, linguistician,
   literary man, litterateur, lover of learning, man of learning,
   man of letters, mastermind, mine of information, orthoepist,
   paleographer, philologaster, philologer, philologian, philologue,
   philomath, philosophe, philosopher, phonemicist, phonetician,
   phoneticist, phonologist, polyhistor, polymath, pundit, savant,
   scholar, scholastic, schoolman, semanticist, semasiologist,
   student, walking encyclopedia